signals allows the application of Boolean logic‚ and binary number representations‚ which form the foundation of the digital devices. Digital devices are categorized according to their function as combinational logic or sequential logic devices. The difference between two categories is based on the signal timing‚ for sequential logic devices the timing or sequencing history‚ of the input signals plays a role in determining the output‚ but for combinational logic devices the output depend only on the
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Microprocessors and Microcontrollers/Interfacing with 8086 Lecture Notes Module 3 Learning unit 8: Interface • • • • • • • • • We have four common types of memory: Read only memory (ROM) Flash memory (EEPROM) Static Random access memory (SARAM) Dynamic Random access memory (DRAM). Pin connections common to all memory devices are: The address input‚ data output or input/outputs‚ selection input and control input used to select a read or write operation. Address connections: All memory devices
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Schneider Electric 1999 1999 The year in review Get more with the world’s Power & Control specialist 1999 Profile Schneider Electric serves customers in with more than 130 150 150 countries production facilities‚ service centers sales outlets. and 9‚000 Our 67‚500 8.4 team members generated sales of billion euros in 1999 of which was outside of France) (82% in electrical distribution‚ industrial control and automation‚ raising net income by 18% 481
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Servo motor - This is a small motor in a C-band dish feed assembly. This motor selects whether vertical or horizontal polarization is to be received. Servo motor A Servo is a small device that has an output shaft. This shaft can be positioned to specific angular positions by sending the servo a coded signal. As long as the coded signal exists on the input line‚ the servo will maintain the angular position of the shaft. As the coded signal changes‚ the angular position of the shaft changes
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ports of the PCs. The ports are programmed in C. We use MAX 232 to convert RS 232 logic to TTL logic and then an optical transmitter circuit to transmit data via fiber optic cable. The optical transmitter circuit has a LED which is matched as far the cable and MAX 232 is concerned. At the receiver we have an optical receiver circuit which receives data using a photo transistor and a MAX 232 again to convert TTL logic to RS 232 for the serial port at the receiving end computer. The desired baud rate
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June 2013) Subject Code Subject Teaching Scheme Hrs/Week Examination Scheme Pr OR Online Mark Total Lect. Tutorials Pract Paper Tw SEM – I 210241 Discrete Structures 210242 Data Structures and Problem Solving 210243 Digital Electronics and Logic Design 210244 Operating System and Administration 210245 Microprocessor Architecture 210246 Soft Skills Total of Semester – I 4 4 3 3 3 1 18 — — — — — — — — 4 2 2 2 2 12 50 50 50 50 50 — 250 — — 25 25 25 25 100 — 50 — 50 — — 100 — — — — 50 —
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circuit that automatically switches the fan when it detects the temperature inside the box greater than its threshold value. The system made use of: AT89C51 Microcontroller‚ Temperature sensor (LM35)‚ Analog to Digital Converter (ADC) [1]. PID controllers have been used for industrial processes because of their simplicity and robustness. A.
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messages in SMS format the MODEM in the display system will receive the message and update the display according to the message. For every message received from the user mobile‚ the system will check for the password and if the password is correct the controller will display the message. PROJECT CYCLE 1. Specification of the Project. 2. PCB Layout. 3. Device Test. 4. Code Implementation. 5. Program Test. 6. Pilot Run. 7. Documentation. SOFTWARES USED: ❖ Embedded C.
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Circuit Diagram [pic] The Microcontroller is directly linked to the voice recognition and the volume control module. The headphone is directly linked to the volume controller. There are to boxes highlighted. The highlighted blue box contains digital pins; the volume controller module can be controlled from any pins from the blue box‚ D2 – D11. The highlighted yellow box contains analog pins; these pins will be connected to the user interface buttons‚ where mode of operation
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19 CHAPTER TWO P&IDs and Symbols Overview The acronym “P&ID” is widely understood within the process industries as the name for the principal document used to define a process – the equipment‚ piping and all monitoring and control components. The Automation‚ Systems and Instrumentation Dictionary‚ 4th edition’s definition for a Piping and Instrumentation Drawing (P&ID) tells what they do. P&IDs “show the interconnection of process equipment and the instrumentation used to control the
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